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(N0 Mo m WRIGHT, L ID FEEDE No. 405,934. Patented June 25, 1889.

UNITED STATES PATENT OFFICE.

IVALTER B. \VRIGHT, OF CHICAGO, ILLINOIS, ASSIGNOR TO \VILLIAMS dz \VRIGHT, OF SAME PLACE.

FLUID-FEEDER.

SPECIFICATION forming part of Letters Patent N 0. 405,934, dated June 25, 1889.

Application filed October 19, 1888. Serial No. 288,5l8. (No model.) Patented in England April 24, 1889.

T0 at whom it may concern.-

Be it known that I, \VALTER B. IVRIGHT, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Fluid- Feeder, of which the following is a specification.

My invention relates to devices for feeding or controlling the feed of fluids to furnaces or for similar purposes, and has for its object to provide means whereby the control of the feed may be satisfactorily regulated. This I accomplish by means of the devices illustrated in the accompanying drawings, wherein- Figure 1 is a horizontal section on the line 1 1 of Fig. 4. Fig. 2 is a cross-section on the line 2 2 of Fig. 1. Fig. 3 is a part-section view on the line 3 3 of Fig. 1 with the plug removed. Fig. 4 is a cross-section on the line 4 4: of Fig. 1.

Like parts are indicated by the same letter in all the figures.

A is a hand-wheel passing through the stuffing-box B and screw-threaded into the piece C and terminating in the point D, which passes into the passage or nozzle E and controls it.

F is the body of the device into which the piece C is screw-threaded. This body F terminates in the feed or discharge nozzle G. \Vithin the body F is a cavity, shaped as shown, into which opens the fluid-fuel way or passage H and the air way or passage J. \Vithin the piece C is a cavity K, into which opens the forcing-fluid passage L. In the enlarged lateral portion F of the body F is an oil-reservoir M, which opens into the conicalshaped aperture N, into which opens the oilfeed passage II. Into the cavity IWI opens the supply-way O. \Vithin the conical aperture N is placed the plug P, having about it the spiral passage-way R. This plug is provided with the spring-handle S, which has a feather T on its lower outer extremity, the same adapted to engage notches about the periphery of the .fixed graduated quadrant U. The quadrant may be graduated, as desired, and it serves as a scale with which to measure the extent of opening of the fiuidfuel-supply aperture H. It will be understood, of course, that the fluid-fuel way 0, the foreing-fluid-supply way L, and the air-supply way J may be controlled by suitable valves of the ordinary construction.

The use and operation of my invention are as follows: The suitable connections having been made, the nozzle having been placed in position for operation, the point D may be slightly retiacted by operating the hand-wheel A, whereupon a supply of feedforcing fluid is discharged through the aperture E out through the nozzle G in the direction of the arrow, and thereupon a quantity of air is drawn in through the aperture J and a suitable quantity of fluid-fuel from the cavity or reservoir M through the spiral R, about the plug P, through the passage-way H, thence out through the nozzle. Thus the three fluids are together commingled and united, and are forced through the nozzle G to the point of action, the feed-forcing fluid drawing the other two fluids along with it and forcing all through the nozzle after the man ner of an injector. Nor does it make any difference in the operation of this device what kinds of fluids are supplied from each of the several apertures, though in ordinary practice it is the custom to supply steam through the aperture L, air through the aperture J, and oil through the aperture II. The chief difficulty is experienced ordinarily in the feed of the oil, and in this device the oil is fed through the aperture H through the spiral R. The spiral R may be of any desired size, shape, pitch, and length,but is preferably so formed as to be always open at some point to the cavity or reservoir M. In cross-section it may be of the same size as the aperture H. If, therefore, the plug P is turned so as to bring the upper and lower margins of the spiral R in horizontal line with the upper and lower margins of the aperture H, a full supply of fluid will pass through the spiral R and aperture II. If, now, it is desired to vary the quantity of fluid fed, it is only necessary to rotate the plug P and by as much as the upper and lower margins of the spiral R depart from the upper and lower margins, respectively, of the aperture H by so much will the actual delivery-aperture be diminished; but it Will be observed that this diminution of the area of the delivery-aperture takes place without diminishing its width and hence without increasing its liability to clog the fluid. If, for instance, the plug P be rotated until the point X on the upper edge of the spiral reaches the lower line of the aperture H, said aperture will be entirely closed, and when the parts are in the positionindicated in Fig. 4 it will be entirely open. Any method of graduation might be used on the quadrant U, that shown only indicating a few lines.

Having thus described my invention, what I claim, and desire to secure by Letters Patcut, is as follows:

1. In an injector fluid-fuel feeder, the combination of an oil-supply reservoir, with a nozzle containing a plug-valve cavity, having an aperture leading to said reservoir on one side 20 and a discharge-aperture leading to the injector proper on the other side, and a plug handle for such plug, and a graduated quad-- rant over which such handle passes, whereby the effective area of the fiuid-passage way may be correctly indicated.

l/VALTER l3. WRIGHT. WVitnesses:

FRANCIS W. PARKER, CELESTE P. CHAPMAN. 

